Lock for bicycle-stands



Patented Nov. 22, I898.

D. B. AUSTIN.

LOOK FOR BICYCLE STANDS.

(Application filed Jan. 24, 1898.)

(No Model.)

441%- INVENTOR WITNESSES: M

Bow wsi'un Q5 wwwliw UNITED STATES PATENT @EETCE.

DOYV B. AUSTIN, OF GRAND RAPIDS, MICHIGAN.

LOCK FOR BICYCLE-STANDS.

SPECIFICATION forming part of Letters Patent No. 614,433, dated November22, 1898.

Application filed January 24, 1898. Serial No. 667,677. (No model.)

To all whom it may concern:

Be it known that I, DOW B. AUSTIN, a citizen of the United States,residing at Grand Rapids, in the county of Kent and State of Michigan,have invented certain new and useful Improvements in Looks for Bicycle-Stands; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

My invention relates to improvements in looks for bicycle-stands; andits object is to provide a lock with a key-operated bolt adapted toproject far enough to extend across the space between the posts of abicycle-stand and through the wheel of a bicycle to secure the sameinthe stand,and also to provide the same with certain other new and usefulfeatures hereinafter more fully described, and particularly pointed outin the claims, reference being had to the accompanying drawings, inwhich- Figure 1 is a perspective of alock embodying my invention; Fig.2, an elevation of the same with the front plate removed; Fig. 3, anenlarged sectional detail on the line 3 3 of Fig. 2, and Fig. 4 a planView of the flat key to operate the lock.

Like letters refer to like parts in all of the figures.

A represents a suitable casing having a detachable side A and adapted tobe secured in a bicycle-stand adjacent to the space in which thebicycle-wheel is inserted.

B is a bolt sliding in an opening in the case near one end and in aguide-block Cnear the other end, and adapted to extend from the case farenough to pass across said space and through the bicycle-wheel and entera suitable opening at the other side of said space, and thus effectuallysecure the wheel in the stand.

. To effect this extended movement of the bolt H, journaled in the caseA and projecting through the same and provided with a keyslot H, adaptedto receive a flat key M, provided with a series of projections O todisengage the tumblers from the slot H, and an incline P to move saidtumblers outward. Wards K, supported in place by pins Q, engage groovesin the plug H and are provided with nicks K to permit the projections Oof the key to pass.

J is a spring-actuated tumbler to engage the key-slot H and prevent theplug from turning.

The number and arrangement of the wards and tumblers may be Varied andthe keys varied accordingly, each key having a projection O to lift eachtumbler and spaces between the projections O, corresponding to the wardsof the respective lock that it is designed to operate.

L is a lug to engage and stop the descent of the connecting-rod F, and Da stop-pin to engage the case and stop the bolt when the latter is fullyprojected from the case. An opening N in the case permits theprojections O to pass when the device isin locked position, and whenunlocked the key is retained by the engagement of said projections withthe inner side of the casing. When the device is locked, the tumblers Jengage the slot H and hold the plug from turning, and the full side ofthe eccentric is slightly below a line drawn from the center of the plugto the pivot connecting the rod F to the lever E. 7

Thus any force applied to push the bolt B back tends to press the rod Fdown upon the lug L and does not bind or'strain the tumblers.

By connecting the eccentric near the pivot of the lever E the end ofsaid lever is moved far enough to throw the long bolt B with butmoderate movement of the rod F. I am thus able to use a lockingmechanism proper having a short throw to operate a bolt having anextended throw.

I am aware that a bolt connectedto a keyoperated locking mechanism by apivoted 1ever and aslotted connecting-rod whereby said bolt is moved a'moderate distance only and during a portion of the lock movement is old.I do not claim such broadly.

Having thus fully described myinvention,

a rotative key-operated plug, tumblers engaging the key-slot of theplug, an eccentric mounted on the plug and rotating therewith, a rodextending from the eccentric and connected to the lever near its pivot,and a lug engaging said rod to limit its movement and take the strainoff the tumblers substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

DOlV B. AUSTIN. Witnesses:

LUTHER V. MoULToN, LEWIS E. FLANDERS.

